Episode 18 recap: Hua Mo guided Hua Shu to switch to the Guardian Spirit Arrow.

Yan Shuang knew that A Yin had always wanted to help Gu Jin retrieve the Green Silk, so when she learned that the Green Silk was hidden in the Forgotten Flute, she quickly informed him. However, A Yin didn't show any signs of happiness. Instead, she wanted to consider it carefully because she felt that she was the one making all the efforts in their relationship, and moreover, the senior brothers of the Daze Mountain didn't want her to be with Gu Jin.

The three realms of immortals, demons, and ghosts gathered in the Heavenly Palace, and suddenly the Guardian Spirit Arrow exploded, making the Demon King extremely furious. Hong Chou believed that all the signs pointed to A Yin, but Gu Jin felt that things hadn't been clarified yet, and it shouldn't be hastily concluded. If someone deliberately provoked a conflict between the immortals and demons, wouldn't they be falling into the trap of others? Shortly after, the Heavenly Execution Officer came with his men to arrest A Yin, citing the reason that the explosion of the Guardian Spirit Arrow had destroyed the Mountain Emperor's True Yi Finger Bone.

Hong Yi observed that Elder Hong Mei's wound seemed to have been inflicted by the Ring Blade, and the severity of the Ring Blade made him think of the artifact left by the King. A Yin was unaware of such things, so he consulted Fu Chen Jian about the news of the Annihilation Wheel. Fu Chen Jian suggested that they go to the secret library in the Heavenly Palace to find out. Unfortunately, the secret library was protected by barriers, and A Yin and the others couldn't enter.

Gu Jin heard that the Parasol Tree was hidden in the Military Officer's Hall, so he used the excuse of tailor-making battle robes to investigate the situation. A Yin personally took Gu Jin's measurements, and the close proximity made Gu Jin feel flustered. Before they could finish measuring, A Yin turned and left. The spiritual artifacts were enthusiastic about gossip and noticed that there was a one-sided affection between A Yin and Gu Jin, but A Yin argued that they had a deep connection and didn't understand why Gu Jin had suddenly changed.

Listening to A Yin's description, Fu Chen Jian suddenly remembered that there was an immortal artifact that could extract someone's emotional ties. A Yin realized this immediately. That night, A Yin approached Hong Yi and Yan Shuang to discuss the matter. The urgent task was to retrieve Gu Jin's emotional ties but without revealing Gu Jin's true identity.

Originally, Hua Shu wanted to persuade Emperor Lan Feng to show leniency to his brother, Hua Yan, but Emperor Lan Feng was upright and believed that their feelings should not be mixed with transactions. When Hua Shu returned to the Hall of Fate, Hua Yan rushed over urgently, expressing that he was about to ascend as the Subordinate Sovereign and had already failed three times before. He hoped to borrow the Xuanwu Shield from the Military Officer's Hall to withstand the Thunder Tribulation.

Under Hua Yan's desperate plea, Hua Shu gave him a token that could enter the Military Officer's Hall and reminded him to secretly take the token and leave in the middle of the night without causing trouble. However, when Hua Yan broke into the Military Officer's Hall, he unexpectedly attracted the Thunder Tribulation, catching the attention of A Yin and the others. The three of them joined forces to retrieve the Xuanwu Shield, but they were relentlessly attacked by the thunder and lightning.

At a critical moment, Gu Jin appeared and shielded A Yin from the Thunder Tribulation, protecting her without hesitation until the lightning disappeared. A Yin pretended to be weak and fell into Gu Jin's arms, causing Gu Jin to be extremely worried. He quickly carried her back to the room and discovered a small wound on the back of her hand.

Although Gu Jin could see that A Yin was pretending to be sick, he still patiently accompanied her.

On the other hand, Hong Yi noticed that Yan Shuang was injured, so he pretended to be calm and handed her a bottle of healing medicine, trying his best to conceal his concern for her. After returning to the palace, Gu Jin couldn't sleep and had A Yin's image and voice in his mind, even appearing in his dreams.

The next day, Emperor Lan Feng summoned Hua Shu and was angry that Hua Shu had allowed Hua Yan to cause trouble in the Heavenly Palace. According to the rules of the immortals, punishment should be given, which made Hua Shu extremely dissatisfied, leading to a rift between them. Last night, Fu Chen Jian transformed into a sword to save A Yin, revealing the patterns of the parasol tree on his body.

Under Gu Jin's questioning, Fu Chen Jian had no choice but to admit that he was indeed a sword made of parasol tree wood and needed the nourishment of the Phoenix Fire Essence. Gu Jin used the Sunfire Seed from the Daze Mountain to heal Fu Chen Jian's injuries, and Fu Chen Jian was extremely grateful, voluntarily giving his essence to Gu Jin.

Now that Hua Yan has failed in his promotion and received severe punishment from the emperor, even Hua Shu has written a self-reproach decree. Therefore, the Peacock King no longer has any expectations of Emperor Lan Feng and persuades his daughter to marry the Third Prince of the South Sea and form an alliance with the South Sea faction. Hua Shu knows well that the Third Prince of the South Sea is a flirtatious person and naturally refuses her father's proposal decisively.

Since the retirement of the Old Spring Cloud Immortal, there have been only four positions left among the Five Honored Ones in the immortal realm: Wind, Fire, Thunder, and Lightning. His position has remained vacant, with no one to fill it. The position of the Five Honored Ones is extremely prestigious, a crucial position in the immortal realm. Not only do they surpass all other immortals, but they also have the power to advise the Heavenly Emperor. Therefore, Hua Shu wants to compete with Emperor Lan Feng for this position. However, Emperor Lan Feng insists that he won't show favoritism and that the selection will be based on votes.

A Yin recalls Fu Chen Jian's words and speculates that the matter of emotional ties must be related to the red silk. Coincidentally, Red Silk comes to the immortal realm to prepare for the Ling Yao Conference and meets A Yin. Worried that she and Gu Jin are developing feelings for each other due to their frequent interactions, Red Silk warns A Yin once again. However, A Yin states that she loves Gu Jin, whether he is a human, god, or immortal, and that her feelings cannot be changed.

Moreover, in A Yin's view, Gu Jin wouldn't care about social status, whereas Red Silk, despite being from the divine realm, lives in a calculating and arrogant manner, lacking any sense of divinity. Hua Shu overhears their conversation and realizes Gu Jin's true identity and background, which shocks her but also gives her an idea. Although Hua Shu has a leaning towards Emperor Lan Feng in terms of emotions, she needs a husband who can help revitalize her family. Emperor Lan Feng's fairness and impartiality disappoint her, so she decides to please Red Silk and rekindle her connection with Gu Jin.

Red Silk sees through Hua Shu's intentions and decides to use her to make A Yin give up.